FL-Launching (Fling) is a research platform for Federated Learning using PyTorch as backend.

Its goal is to simulate the distributed learning process of Federated Learning on single or multiple machines, providing a fair testing platform for the performance of various federated learning algorithms on different datasets. It is mainly based on the Python language and uses the PyTorch framework as the backend module for deep learning, supporting a variety of federated learning algorithms and commonly used federated learning datasets.

It mainly supports:

• Generic Federated Learning methods, such as FedAvg.
• Personalized Federated Learning methods, such as FedPer.
• Attacking methods, such as DLG.

Firstly, it is recommended to install PyTorch manually with a suitable version (specifically 1.1.0 or higher). However, using PyTorch version 2.0.0 or later is preferred due to its better computational efficiency. Instructions for installation can be found at this link.

After the first step, you can simply install the latest version of Fling with the following command by using Git:

git clone https://github.com/FLAIR-Community/Fling
cd Fling
pip install -e .

Finally, you can use

fling -v

to check whether Fling is successfully installed.

After successfully install Fling, users can start the first Fling experiment by using the following command. An example for generic federated learning:

python flzoo/mnist/mnist_fedavg_cnn_toy_config.py

Or using our cli util by:

fling run -c flzoo/mnist/mnist_fedper_cnn_toy_config.py -p personalized_model_pipeline

This config is a simplified version for conducting FedAvg on the dataset MNIST and iterate for 4 communication rounds.

For other algorithms and datasets, users can refer to argzoo/ or customize your own configuration files.

For visualization utilities, please refer to README for visualization.

For attacking methods, please refer to our examples in: demo for attack

Tutorials:

Overall Framework of Fling | Fling 整体框架

Meaning for Each Configuration Key | 配置文件各字段含义

How to Add a New FL Algorithm | 如何自定义联邦学习算法

How to Add a New Dataset | 如何添加新数据集

Cli Usage in Fling | Fling 的 CLI 使用

• Support for a variety of algorithms and datasets.
• Support multiprocessing training on each client for better efficiency.
• Using single GPU to simulate Federated Learning process.
• Strong visualization utilities. See this README file for detailed information. There are also demos for reference.

  Generic federated learning, which finally trains a single global model for all clients.

  Personalized federated learning, which finally trains a personalized model for each client.

  Attacking methods, which simulate the attacking process of adversaries and test the robustness of federated learning algorithms.

  Visualization utilities for federated learning.

  Cross-domain scenarios represent feature shift heterogeneity, where data from different clients originate from different domains, resulting in distinct feature distributions.

Fling currently supports DomainNet, with plans to extend support to additional cross-domain datasets in the future. The flzoo/domainnet/ folder provides demos of various algorithms on DomainNet.

Algorithm	Reference Link	Categories	Demo
FedAvg	Communication-Efficient Learning of Deep Networks from Decentralized Data		python flzoo/cifar10/cifar10_fedavg_resnet_config.py
FedProx	Federated Optimization in Heterogeneous Networks		python flzoo/cifar10/cifar10_fedprox_resnet_config.py
FedMOON	Model-Contrastive Federated Learning		python flzoo/cifar10/cifar10_fedmoon_cnn_config.py
SCAFFOLD	SCAFFOLD: Stochastic Controlled Averaging for Federated Learning		python flzoo/cifar10/cifar10_scaffold_resnet_config.py
FedPart	Why Go Full? Elevating Federated Learning Through Partial Network Updates		python flzoo/cifar10/cifar10_fedpart_resnet8_config.py
FedPer	Federated Learning with Personalization Layers		python flzoo/cifar10/cifar10_fedper_resnet_config.py
FedBN	FedBN: Federated Learning on Non-IID Features via Local Batch Normalization		python flzoo/cifar10/cifar10_fedbn_resnet_config.py
FedRoD	On Bridging Generic and Personalized Federated Learning for Image Classification		python flzoo/cifar10/cifar10_fedrod_resnet_config.py
pFedSD	Personalized Edge Intelligence via Federated Self-Knowledge Distillation		python flzoo/cifar10/cifar10_pfedsd_resnet_config.py
FedCAC	Bold but Cautious: Unlocking the Potential of Personalized Federated Learning through Cautiously Aggressive Collaboration		python flzoo/cifar10/cifar10_fedcac_resnet_config.py
DLG	Deep Leakage from Gradients		python fling/utils/attack_utils/demo/demo_dlg.py
iDLG	Inverting Gradients -- How easy is it to break privacy in federated learning?		python fling/utils/attack_utils/demo/demo_idlg.py

• For any bugs, questions, feature requirements, feel free to propose them in issues
• For any contributions that can improve Fling (more algorithms or better system design), we warmly welcome you to propose them in a pull request.

Special thanks to @kxzxvbk, @chuchugloria, @KeyGuo, @XinHao-96, @Ando233, @shonnyx.

@misc{Fling,
    title={Fling: Framework for Federated Learning},
    author={Fling Contributors},
    publisher = {GitHub},
    howpublished = {\url{https://github.com/FLAIR-Community/Fling}},
    year={2023},
}

Fling is released under the Apache 2.0 license.